2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops最新文献

Multi-fiber reconstruction from DW-MRI using a continuous mixture of von Mises-Fisher distributions 使用von Mises-Fisher分布连续混合的DW-MRI多纤维重建

2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops Pub Date : 2008-07-15 DOI: 10.1109/CVPRW.2008.4562991

Ritwik K. Kumar, Angelos Barmpoutis, B. Vemuri, P. Carney, T. Mareci

引用次数: 25

Effective image database search via dimensionality reduction 有效的图像数据库搜索通过降维

2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops Pub Date : 2008-06-23 DOI: 10.1109/CVPRW.2008.4562957

A. Dahl, H. Aanæs

{"title":"Effective image database search via dimensionality reduction","authors":"A. Dahl, H. Aanæs","doi":"10.1109/CVPRW.2008.4562957","DOIUrl":"https://doi.org/10.1109/CVPRW.2008.4562957","url":null,"abstract":"Image search using the bag-of-words image representation is investigated further in this paper. This approach has shown promising results for large scale image collections making it relevant for Internet applications. The steps involved in the bag-of-words approach are feature extraction, vocabulary building, and searching with a query image. It is important to keep the computational cost low through all steps. In this paper we focus on the efficiency of the technique. To do that we substantially reduce the dimensionality of the features by the use of PCA and addition of color. Building of the visual vocabulary is typically done using k-means. We investigate a clustering algorithm based on the leader follower principle (LF-clustering), in which the number of clusters is not fixed. The adaptive nature of LF-clustering is shown to improve the quality of the visual vocabulary using this. In the query step, features from the query image are assigned to the visual vocabulary. The dimensionality reduction enables us to do exact feature labeling using kD-tree, instead of approximate approaches normally used. Despite the dimensionality reduction to between 6 and 15 dimensions we obtain improved results compared to the traditional bag-of-words approach based on 128 dimensional SIFT feature and k-means clustering.","PeriodicalId":102206,"journal":{"name":"2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124422969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Interleaved pixel lookup for embedded computer vision 用于嵌入式计算机视觉的交错像素查找

2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops Pub Date : 2008-06-23 DOI: 10.1109/CVPRW.2008.4563152

Kota Yamaguchi, Yoshihiro Watanabe, T. Komuro, M. Ishikawa

引用次数: 1

Real-time estimation of human attention field in LWIR and color surveillance videos LWIR和彩色监控视频中人类注意力场的实时估计

2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops Pub Date : 2008-06-23 DOI: 10.1109/CVPRW.2008.4563059

A. Leykin, R. Hammoud

引用次数: 14

ToF-sensors: New dimensions for realism and interactivity tof传感器:现实性和交互性的新维度

2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops Pub Date : 2008-06-23 DOI: 10.1109/CVPRW.2008.4563159

A. Kolb, E. Barth, R. Koch

{"title":"ToF-sensors: New dimensions for realism and interactivity","authors":"A. Kolb, E. Barth, R. Koch","doi":"10.1109/CVPRW.2008.4563159","DOIUrl":"https://doi.org/10.1109/CVPRW.2008.4563159","url":null,"abstract":"A growing number of applications depend on accurate and fast 3D scene analysis. Examples are object recognition, collision prevention, 3D modeling, mixed reality, and gesture recognition. The estimation of a range map by image analysis or laser scan techniques is still a time- consuming and expensive part of such systems. A lower-priced, fast and robust alternative for distance measurements are time-of-flight (ToF) cameras. Recently, significant improvements have been made in order to achieve low-cost and compact ToF-devices, that have the potential to revolutionize many fields of research, including computer vision, computer graphics and human computer interaction (HCI). These technologies are starting to have an impact on research and commercial applications. The upcoming generation of ToF sensors, however, will be even more powerful and will have the potential to become \"ubiquitous geometry devices\" for gaming, web-conferencing, and numerous other applications. This paper will give an account of some recent developments in ToF-technology and will discuss applications of this technology for vision, graphics, and HCI.","PeriodicalId":102206,"journal":{"name":"2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124262077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 67

3D model search and pose estimation from single images using VIP features 利用VIP特征对单幅图像进行三维模型搜索和姿态估计

2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops Pub Date : 2008-06-23 DOI: 10.1109/CVPRW.2008.4563037

Changchang Wu, F. Fraundorfer, Jan-Michael Frahm, M. Pollefeys

引用次数: 32

3-D gesture-based scene navigation in medical imaging applications using Time-of-Flight cameras 使用飞行时间(Time-of-Flight)相机的医学成像应用中基于手势的三维场景导航

2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops Pub Date : 2008-06-23 DOI: 10.1109/CVPRW.2008.4563162

S. Soutschek, J. Penne, J. Hornegger, J. Kornhuber

{"title":"3-D gesture-based scene navigation in medical imaging applications using Time-of-Flight cameras","authors":"S. Soutschek, J. Penne, J. Hornegger, J. Kornhuber","doi":"10.1109/CVPRW.2008.4563162","DOIUrl":"https://doi.org/10.1109/CVPRW.2008.4563162","url":null,"abstract":"For a lot of applications, and particularly for medical intra-operative applications, the exploration of and navigation through 3-D image data provided by sensors like ToF (time-of-flight) cameras, MUSTOF (multisensor-time-of-flight) endoscopes or CT (computed tomography) [8], requires a user-interface which avoids physical interaction with an input device. Thus, we process a touchless user-interface based on gestures classified by the data provided by a ToF camera. Reasonable and necessary user interactions are described. For those interactions a suitable set of gestures is introduced. A user-interface is then proposed, which interprets the current gesture and performs the assigned functionality. For evaluating the quality of the developed user-interface we considered the aspects of classification rate, real-time applicability, usability, intuitiveness and training time. The results of our evaluation show that our system, which provides a classification rate of 94.3% at a framerate of 11 frames per second, satisfactorily addresses all these quality requirements.","PeriodicalId":102206,"journal":{"name":"2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114275672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 103

A novel quality measure for information hiding in images 一种新的图像信息隐藏质量度量方法

2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops Pub Date : 2008-06-23 DOI: 10.1109/CVPRW.2008.4562985

KA Navas, M. Aravind, M. Sasikumar, Assitant

引用次数: 12

Can similar scenes help surface layout estimation? 相似的场景能帮助估算表面布局吗?

2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops Pub Date : 2008-06-23 DOI: 10.1109/CVPRW.2008.4562951

S. Divvala, Alexei A. Efros, M. Hebert

引用次数: 18

A statistical framework for the registration of 3D knee implant components to single-plane X-ray images 三维膝关节植入部件与单平面x射线图像配准的统计框架

2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops Pub Date : 2008-06-23 DOI: 10.1109/CVPRW.2008.4563004

Jeroen Hermans, J. Bellemans, F. Maes, D. Vandermeulen, P. Suetens

引用次数: 3